icsharpcode/ILSpy

This system is a comprehensive .NET decompiler and reverse-engineering toolkit, primarily known as ILSpy. It provides a cross-platform desktop application and a reusable library for decompiling .NET assemblies into readable C# and VB.NET source code. The system supports a wide range of features including BAML-to-XAML decompilation, IL disassembly, metadata inspection, and code analysis. It also includes a command-line interface (ILSpyCmd) and a Dockerized headless mode for automated processing.

This period focused on modernizing the ILSpy codebase by migrating the UI to Avalonia, refactoring the C# decompiler's internal AST and type systems, and introducing advanced features like the omnibar and bookmarks. The work also standardized build configurations, updated dependencies, and significantly improved the accuracy of IL and C# decompilation through extensive structural and algorithmic changes.

38 changes

This period was dominated by a comprehensive overhaul of the test infrastructure, introducing a matrix-testing model and expanding coverage for correctness, pretty-printing, and PDB generation across multiple compiler versions and frameworks. Concurrently, the project introduced cross-platform build tooling, a new PowerShell module, and a reusable cross-platform core library (ILSpyX) to support alternate frontends and command-line usage.

42 changes

The project underwent a major UI migration from WPF to Avalonia, introducing a new tree view, search pane, and various controls while establishing a robust headless test infrastructure. Simultaneously, the codebase expanded its decompilation capabilities by introducing a standalone BAML decompiler and a new analyzer infrastructure for deeper code insights.

69 changes

icsharpcode/ILSpy was measured the same way every project in this corpus was: the same rubric, at a pinned commit, with the result published in full. Point the surveyor at a repository you know and see whether you agree with it.